GE T1000, Technical Manual

Page: 247 / 302

Chapter 8
– Monitoring
GE Reason Switches
REASON SWITCHES-TM-EN-3 247
6 Spanning Tree
This chapter describes monitoring possibilities for Spanning Tree monitoring, such as
Bridge Status, Port Status and Port Statistics.
If desired to update Reason Switches web screen automatically, check the Auto
Refresh checkbox on top to perform it. If selected, monitoring web page will be
updated after 3 seconds of the last update automatically.

Bridge Status:
Bridge Status option allows user to view basic information about the configured
Spanning Tree values at the bridge and current topology information in Reason
Switches. Information presented is as follows:
o
MSTI, which represents bridge’s instance. If MSTP is not used, only
CIST is shown. MSTI name represented is also a link which redirects
to the STP Bridge Status menu. If MSTI link is accessed, allowed
information is as follows:
 STP Bridge Status: this table contains detailed information
about STP current status at the bridge. Allowed
information at the table is as follows:

Bridge instance;

Bridge ID, that is, the bridge identifier number, in
the
format “Priority.Bridge -MAC- Address”;

Root ID, that is, the root bridge identifier number,
in the format “Priority.Bridge -MAC- Address”;

Root Cost, which is the current bridge to the Root
bridge path cost;

Root Port, which is the port current working as
Root Port;

Regional Root, that is, the MSTP regional root at
the instance that is being verified;

Internal Root Cost;

Topology Flag, that is, current value of the
change flag at this instance;

Topology Change Count, that is, all topology
change messages received on the instance;

Topology Change Last, which represents last
time since topology has changed at the selected
instance;

CIST Ports & Aggregation State table, where information
about STP ports is shown. Allowed values are as follows: